RAPHAEL , Dennis; WAHLSTROM , Merlin. The Semestered Secondary School and Student Achievement: Results from the Second Ontario International Science Study. Canadian Journal of Education/Revue canadienne de l’éducation, [S. l.], v. 11, n. 2, p. 180–183, 1986. Disponível em: https://cje-rce.ca/index.php/cje-rce/article/view/8236. Acesso em: 24 sep. 2026.